Question

Which is the most powerful authentication method among the four?

(a) Hard-coding a login  pair directly into the script

(b) File-based authentication

(c) Data-based authentication

(d) PEAR’S HTTP authentication

I got this question in an online interview.

This interesting question is from User Authentication topic in chapter File and Session Handling in PHP of PHP

Answer 1

The correct choice is (c) Data-based authentication

Easy explanation: It not only enhances administrative convenience and scalability but also can be integrated into a larger database infrastructure.